Index: taxonomy_access.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/taxonomy_access/taxonomy_access.module,v
retrieving revision 1.107.2.19
diff -u -p -r1.107.2.19 taxonomy_access.module
--- taxonomy_access.module	18 Mar 2010 21:38:51 -0000	1.107.2.19
+++ taxonomy_access.module	22 Jun 2010 00:05:24 -0000
@@ -367,6 +367,19 @@ function taxonomy_access_nodeapi(&$node,
       //INFO: node_access_write_grants($node, $grants, $realm = NULL, $delete = TRUE)
       node_access_write_grants($node, array(), 'term_access');
       break;
+    case 'validate':
+        global $user;
+        if (is_array($arg['taxonomy'][1]['#value'])) $categories = $arg['taxonomy'][1]['#value'];
+        else $categories = array($arg['taxonomy'][1]['#value']);
+        foreach ($user->roles as $rid => $role_name) {
+            foreach(taxonomy_access_get_grants($rid) as $term_id => $value) {
+                if (in_array($term_id, $categories) && $value['update'] == 2 && $value['delete'] == 2) {
+                    form_set_error('taxonomy[1]', t("You cannot use %tax, please select another section.",
+                        array('%tax' => taxonomy_get_term($term_id)->name)));
+                }
+            }
+        }
+        break;
   }
 }